FR 2251 then SN 3698 at Barcelona
Marrakesh → Barcelona → Brussels
Timetable, Barcelona time
20:35FR 2251 from Marrakesh at the gate
12:25SN 3698 to Brussels leaves the gate
15 h 50 apart on the timetable, overnight
SN 3698 leaves 15 h 50 after FR 2251 arrives on the timetable: more than half a day, so not a connection we count.